Educational Resources

Displacement Monitoring

Displacement monitoring measures the distance that parts compress into each other (are displaced) during resistance spot welding; one or two sensors are used to measure the displacement of a pair of electrodes relative to each other during resistance welding

Displacement monitoring works with most “soft” materials like nickel and stainless steel, but is less effective with hard materials like carbon steel, molybdenum, and tungsten.

Displacement monitoring makes it possible to identify and correlate good welds from poor welds with known displacement.